Roller-bearing.



No. 785,120. PATENTBD MAR. 21. 1905.

M. 0. REEVES.

ROLLER BEARING.

APPLICATION FILED DEC. 21, 1903 13 k 1 Qwoemboz LL Milton QReeves L y 1 11" M I Gum/"0430K 7 UNITED STAT S Pat-amid Maren :11. 1905;

Parr: NT ()r'rl MILTON o. REEVES. ()F.(OTJIT.\[BUS. INDIANA. .issio'non 'ro semi-Ls,

PULLE'Y ((LVPANY. OF lOLlMBUS, INDIANA.

" lXDLiXA.

ROLLER-BEARING.

SPECIFICATION forming part of Letters Patent N 0. 785,120. dated March 21, 1905.

Application filed December 21, 1903. SerialaNo. 186,12&-

'- ''0 111/] 714mm [2- In/mycanoe/Ia.-

Be it known that I. MILTON O. Rnnvns, a

citizen of the United'States. residing at Columbus. in the county of Bartholomew and State oflndiana, have invented certain new and useful I i'nprovcmen ts in Roller-Bearings. of which the following is a specification} My'in'vention relates to an imi'irovementin thrust-bearings especially designed for. although not necessarily limited to use with,

's 'ieedwarying meehanisms of a type S as is shown in Patent No. 6.03.1767, issued April 26, 1898. to the Reeves Pulley (.ompany. said bearing being provided for interposition between' each of. the cone-shaped disks and its shiftingelclver. J

The object of my invention is to provide a thrust-bearing in which the spider shall act as a spacer tor the balls or rollers rather than as a guide. the construction being such that the outer balls or rollers engage an annular retaining-flange which in operation is engaged at all points in succession by each outer ball or roller, thus insuring the continued concentric-ity of the retaining member.

A further object-t my invention is to provide a thrust-bearingof this type the rollers or balls of which may be readily removed from the bearing without entirely dismantling the same and the spider of which is formed in sections. so that the said sections may be removed transversely from the shaft.

The accompanying drawings .illustratenrv invention.

Figurel is a side elevation of the spider of my improved bearing: Fig. .2. asection on line L 2 in Fig. 1; Fig. 3, an axial section of a modified form; Fig. 4. a similar section o't' a preferred form; Fig. a plan of the adjacent ends of the two sections of thespider, and Figs, 6 and side elevations of desirable forms of rollers.

In the drawings, 10 and 11 indicate a pair ot'semi-annular coacting spider members, each of which is provided on its periphery with a plurality ot' radially-projecting V-shaped spacing-tingerslZ, which thus 'forrn ball or roller rcceiving recesses or sockets 13. The sections It) and 11 are provided at adjacent ends with overlapping portions 10 and 11'. the overlapping being made at the point of onc ot' the ears 1), said car being divided circumferentially.-as shown in Fig. .3. into parts-1Q" and 11''.' so that a fastening-bolt 1-i may be passed therethrough, thus holding the two parts of the spider together. The divided ears 12 (con sisting of parts10" and '11") are preferably considerably thinner than 'the width of the same web Of the spider. and Ihe bolt l-l is of a'length equal to or less than the width of the main portion of the spider. 'lhe s ider is sleeved upon a hub '15 ot' "a carrier ll'i. which carrier is provided with an annular flange 1T.

which overlies the lmb 15 and is adapted to pro ect over the ears 12. Seated within the annular recess thus Formed between lmb l5 and reason of centrifugal action cutting into the flange 17.

In the form shown in Fig. -L the flange 17 is provided on its inner face with a groove 17'. which is aspherical segment having center in the axis of themaiu driving-shaft. am] in this casethe rollers 21 and 22 are of such thickness that when the parts are stationary theymay be witlnlrawn from wit-bin the flange IT. The outer rollers 22 are, in this case provided with. rounded ends 23', whirh are at theiredges segments of two spheres corresponding to the curvature oi the groove li' so that when the parts are in operation these rollers will move out by centrifugalaction and .bear in the groove 17' at the points- The rollers are formed with a middle portion which is straight. so that each roller has a right-line bearing upon both tracks in order that the axes of the rollers maylie in the same I plane at all. times.

In operation the part 16, with its flangclT. remains stationary and part is rotated. so

that the rollers 21 22 have a planetary movement, carrying the spider 1U 11 with them. As a consequence the rollers move within the annulus not only about their own axes, but also about the axis of the annulus, and the ends of the rollers therefore engage the entire length of the interior of the annulus progressively-that is, supposing a roller to be in engagement with the interior of the annulus at a particular point this roller will during a complete revolution of the spider about the shaft be brought into contactwith every portion of the interior of the annulus and return to its starting-point. The fingers 12 do not act as retaining-guides for the rollers, but merely as spacing-fingers, andthe rollers are held in proper position by sliding contact with flange 17. This sliding contact of the rollers with the flange causes a uniform wearingof the flange, so that it is always concentric with the axis of rotation, and therefore the rollers will always be properly guided and will not out out the fingers '12. It Willbe apparent that the spider may be readily withdrawn from the inclosing flange 17, so that the rollers may be easily removed While the members of the spider remain together; .but the operator may readily withdraw the spider segments from the shaft transversely by re.- moving bolts 14.

I am aware that heretofore thrust-bearings have been made in which the spider has been composed of twodiametricall y separable parts; in that construction these parts have been held together by anexternal binding-ring, which also holds the rollers within the spider;

in said spider and having convex outer ends to contact progressively with the entire length of 4 said concave track, and suitable rollertracks.

' 2. A roller-bearing consisting of, a containing annulus, a plurality of rollers arranged therein, said rollers having right-line bearingperipheries and ends adapted to progressively engage the entire length of the interior of the annulus with at least two points of contact upon opposite sides of the axis of each roller, roller-tracks for engaging the right-line bearing-peripheries of the rollers upon opposite sides, and a spacing-spider, whereby the ends of the rollers will progressively engage the entire length of the interior of the annulus and will serve to hold the rollers radially with relation to the axis of the annulus.

In witness whereof I have hereunto set my hand and seal, at Columbus, Indiana, this 7th day of December, A. D. 1903.

MILTON O. REEVES. 

